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Finding the Fourth Proportional to 60,351.67, 90,529.94 and 28,745.47

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Solution

The fourth proportional to 60,351.67, 90,529.94 and 28,745.47 is: 43,119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,351.67 : 90,529.94 = 28,745.47 : x
  2. Step 2: Convert to fraction form
    60,351.67/90,529.94 = 28,745.47/x
  3. Step 3: Cross multiply
    60,351.67x = 90,529.94 × 28,745.47
  4. Step 4: Simplify right side
    60,351.67x = 2,602,325,674.37
  5. Step 5: Solve for x
    x = 2,602,325,674.37/60,351.67
  6. Step 6: Final answer
    x = 43,119.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.